| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 53 |
16%
|
| 2 | Monthly | 61 |
18.4%
|
| 3 | Less than once a month | 201 |
60.5%
|
| 4 | Don't know | 14 |
4.2%
|
| 5 | Refused | 3 |
0.9%
|
| Sysmiss | 668 |